US 12,260,677 B2
Privacy-preserving human action recognition, storage, and retrieval via joint edge and cloud computing
Chi Chung Chan, Burnaby (CA); Dong Zhang, Port Coquitlam (CA); Yu Gao, North Vancouver (CA); Andrew Tsun-Hong Au, Coquitlam (CA); Zachary DeVries, Langley (CA); and Jie Liang, Coquitlam (CA)
Assigned to Altum View Systems Inc., Burnaby (CA)
Filed by AltumView Systems Inc., Burnaby (CA)
Filed on Nov. 9, 2021, as Appl. No. 17/522,901.
Claims priority of provisional application 63/111,621, filed on Nov. 9, 2020.
Prior Publication US 2022/0147736 A1, May 12, 2022
Int. Cl. G06K 9/00 (2022.01); G06F 21/62 (2013.01); G06T 13/40 (2011.01); G06V 20/40 (2022.01); G06V 40/16 (2022.01); G06V 40/20 (2022.01)
CPC G06V 40/23 (2022.01) [G06F 21/6245 (2013.01); G06T 13/40 (2013.01); G06V 20/41 (2022.01); G06V 40/166 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A method of managing human motion data, comprising:
receiving a sequence of video images including at least a first person;
for each video image in the sequence of video images,
detecting the first person in the video image; and
extracting a skeleton figure of the detected first person from the detected image of the first person, wherein the skeleton figure is composed of a set of human keypoints of the detected first person;
combining a sequence of extracted skeleton figures of the detected first person from the sequence of video images to form a first skeleton sequence of the detected first person, wherein the first skeleton sequence depicts a continuous motion of the detected first person; and
transmitting the first skeleton sequence of the detected first person along with a common background image associated with the sequence of video images to a server to be stored on the server, wherein the common background image is transmitted only once, wherein transmitting the first skeleton sequence of the detected first person and a single copy of the common background image in place of the detected images of the first person to the server preserves the privacy of the detected first person.